Feeding device for printing presses



March 10, 1925- 1,528,974

w. E. GROENE ET AL- FEEDING nzvrca FOR PRINTING PRBSSES Filed May. 29, 1924 2 Sheets-Sheet 1 WILLIAM E. GRoEnE. WILLIAM 0 Srmuss,

Sttozmg 1 2 sheets-sheet z w. E. GROENE ET AL Filed May 29, 1924 FEEDING DEVICE FOR PRINTING PRBS S ES WILL/AM 0. STRAUSS.

HHHQESEHZ Patented Mar. 10, 1925.

U'NITED STATES PATENT OFFICE.-

WILLIAM E. GROENE AND WILLIAM o. srRAuss; on CINCINNATI, OHIO, AssIeNoRs TO THE It. K. LE BIJOND MACHINE 'I-OOL PO BIATION OF DELAWARE.

FEEDING DEVJEGE FOR PRINTING IRESSES.

Application filed May 29,

To all whom it may concern;

Be it known that we,NV1LLIArr E. GnonNn and WII .LIAM O. SrnAUss, citizens of the: United States of America,. and residents of Cincinnati, in the. county of Hamilton and- State of Ohio, have invented new and useful Improvements in 'a Feeding Device for Printing; Presses, of which the. following is a s ecification ur invention is concerned with means for slip sheeting printed wort. The device dis= closed herein is primarily concerned with slip: sheeting week that is of a. highly glazed surface-L w I An object of our invention is. to. provide a device of the kind referred to whereinthe slip; sheet is automatically fed over the printedsheet as the printed sheet is passed to a stack of printed sheets, whereby to avoid relative movement of the printed sheet and the slip: sheet and to arecl ud'e smudging of the succeeding printe d sheets. as they are transferred to the stack.

Another object of our invention is to provide a, simple and efficient device for the p11 ,ose stated. v p

Trese and other objectsare attained by, the means described herein and disclosed in; the accompanying drawings, in which:

Fig. 1' is a diagrammatic view'of a printingj press having associated with it means embodying our invention.

Fig. 2' is an enlarged sectional view on line 22lo-fFig 1. Fig." is a sectional View on line 33 of Fig. 2. v

Fig. ii is a fragmental end viewon-hne 4-4iof"Fig 2. I Fig, 5" is an enlarged fragmental sectionalv 0 view on, line 5 5 ofFi'g. 1.

Referring to Fig; 1,. the press 10 may bev of any suitable. type or ki'ndIto which sheets to be printed are fed from the stack. 11 in, any suitable manner. The printed sheets pass from the, press10 to conveyors 12that carry the sheet onward toward the stack upon Which printed. sheets are ultimately disposed. Thestructure comprising; the press 10. and. feeding, means incident to themove- 1924;. Serial No. 716,799.

ment of sheets from the stack 11 may be of any desired means commonly employed. A stack of slip sheets 14k is disposed adjacent the stack 13 and the slip sheets may be fed to the conveyors 15 in any suitable manner. Structures of this type being old, the various co-operati ng elements are merely shown diagrammatically and no effort is made to show any specific means for performing the stated functions; The conveyors 12 and 15- are adapted to deliver the sheets by the structure hereafter described and which structure deposits the said sheetsupon the stack 13. The feeding devices employed by stacks 11 and 14 are synchronized; by"

any suitable means, for example, the drive 06111 11113, or CINCINNATI, OHIO", A COR- shaft 16 may be employed for retaining. the

said mechanisms in synchronized relationship after once they have been so related. The means for supporting the stack 13 comprises sides 17 and 18. The sides compriseuprights or legs 19 and 20.- The shaft: 16 extends between thesides- 17 and 18 and carries a sprocket 21. The sprocket 21 is disposed between the legs 19 of the pair of sides. A. suitable bracket or bearing 22 is. providedfor the shaft 16 and the sprocket 21. A chain 23 extends about the sprocket. 21 and about a sprocket 24 mounted at the upper end of thebr'acket or-bearing 22-. The

cl1ainf23 carries a pin 25 that extends into a recess 26 formed in the sliding block 27... The sliding block 27 is carried by a reciprocating bracket 28 and is arranged for reciproc'ating movement upon the bracketi28 The bracket 28 revolubly receives a shaft 29 said shaft serving as a roll about which extend a. plurality of endless tapes 30. The" tapes 'also extend about a roll'81 that, may be reciprocated in a plane perpendicular to the plane of reciprocation of the shaft 29. The shaft 31 is revolubly supported by suitable bearing blocks 34 that are reciprocally received in elongated ways 32 provided in the upperportions 33 of the sides 17; and 18. A pair of chains. 85 connect oppositeends of the shafts or rollers 29 and The chains extend about sprockets 36,37 andv 381 parts is such that the chains serve merely as means for moving the shafts 29 and 31 in unison. In other words, the shafts 29 and 31, tapes 30, and chains 35 constitute an endless belt. The tapes extend about shafts 39 and 40. A ratchet mechanism comprising the pawl 41 and ratchet wheel 42 are associated with the shaft 40. The co-operation of the ratchet mechanism and the tapes, shafts 29 and 31 and chains 35 is such that as the shaft 29 is reciprocated vertically the tapes 30 intermittingly pass over the shaft or roller 40. Specifically, as the shaft 29 moves upwardly, the tapes 30 pass over the rollers 39 and and move toward the sprocket 36. It is at this time that printed sheets and slip sheets are fed to the horizontal portions of the tapes 30 from the conveyors or feed devices 12 and 15. hen the shaft 29 is moved downwardly, the ratchet mechanism precludes the roller or shaft 40 from moving whereupon the tapes roll over the shaft or roller 39 as the shaft 31 moves toward the roller 40. It is at this time that the printed sheet and the slip sheet that have been carried over the stack 13 are de posited upon the stack 13. The tapes 30 are permitted to extend over the stack 13 to such extent that the printed sheet carrying the slip sheet are disposed directly over the stack 13 and as the tapes are withdrawn from below the said sheets, the sheets settle or drop upon the stack 13. From the foregoing it will be evident that there is no relative sliding or slip-ping movement of the sheets as they are discharged upon the stack, consequently there is no occasion for rubbing or smudging of the printed sheets. The several mechanisms are so related that the roller 31 is at its left hand limit of travel, see Fig. 3, when a printed sheet first begins to feed from the conveyor 12 to the tapes. At this time the slip sheet is fed directly upon the upper and printed face of the sheet that has passed through the press from the stack 11. As the roller 31 and the tapes associated therewith move toward the right, the said several elements carry the sheets to position above the stack 13. A pair of chains 44 are carried by the sides, one each of said chains being supported by each side. Each of the chains 44 extends vertically about sprockets 45 and 46 and each of said chains carries a block 47 in which block the shaft 29 has a mounting for free rotatory motion. From this it will be evident that the shaft 29 is precluded from having its axis moved into other than horizontal planes.

The conveyor 15 comprises a cylinder or drum 50 supported between brackets 51 and 52 carried by the sides 17 and 18. Stub shafts 53 and 54 extending from the ends of the drum have bearing on the plates. A

shaft 55 is carried by said plates and carries.

a bevel gear 56 at its one end, and a pinion 57 at its other end. The pinion meshes with gear 58 on stub shaft 53. Bevel gear 56 meshes with bevel gear 59 mounted on shaft 60. A roller 61 is revolubly mounted on shaft 55, between collars 62 and 63. Endless tapes 64 extend about roller 61, roller 65 revolubly supported above roller 61 by the plates 51 and 52, and about roller 66 disposed adjacent the stack 14 of slip sheets. It will be observed that the drum 50 is interposed between the axes of rollers 61 and 66 wherefore the tapes 64 may be frictionally driven from the drum. Other tapes 67 extend about the drum and about roller 68 disposed adjacent roller 66. The rollers 66 and 68 are separated at a suflicient distance to provide ready entrance of the slip sheets between the tapes 64 and 67. A roller 69 is disposed between the upper and lower surfaces of tapes 67 and serves to elevate tapes 67 so they engage tapes 64. The engagement of the tapes upon the opposite sides of the sheets serves to move the sheets with the tapes. From Fig. 1 it will be readily evident that the tapes 64 and 67 are all driven from drum 50 and will therefore move at the same rate of speed. The roller 69 may be revolubly supported by suitable brackets 7 0. By reference to Fig. 1 it will be readily evident that the slip sheets are moved alternately in substantially opposite directions as they pass from stack 14 to stack 13.

In the operation of my device the several feeding means associated with stacks l1 and 14 are so timed that a printed sheet that has passed through the press 10 will have deposited upon its upper and printed face as it leaves the conveyor 12, a slip sheet that has passed from stack 14 through conveyor 15. The slip sheet will lie upon the upper face of the printed sheet. The feeds of the conveyors 12 and 15 are the same wherefore there will be no relative movement of the sheets as they are carried over the stack 13 by the tapes 30. By reference to Fig. 3, and as previously explained herein, it will be evident that the sheets will be discharged upon the tapes with their forward ends adjacent the shaft 31 As the tapes move into the horizontal from the vertical about the shafts 39 and 40, the movement of the tapes is at about the same speed as the feeding speeds of the conveyors 12 and 15. After the sheets leave the conveyors 12 and 15 they are carried by the tapes 30 until tapes 3O reach their right hand limit of travel whereupon. the shaft 31 moves to the left and the shaft 29 moves downwardly. At this time the ratchet mechanism disclosed in Fig. 4 precludes the uppermost portions of the tapes from traveling about the roller 40 wherefore the rear ends of the sheets are supported by the stationary portions of the tapes 30 ,Whi'le the tapes are withdrawn frombelow the printed sheets. It-will be observed that the withdrawal-- of the tapes from below the printed sheets is at approximately twice the speed stack without any relative movement in thehorizontal between the stack 13 and the descending sheets. In this manner it is possible to safeguard against any smudging of the printed work not only by the application of a slip sheet over the printed work but also from the stacking of the sheet one upon another.

What we claim is:

1. In a device of the class described the combination of means for feeding a printed sheet, means for feeding a slit sheet upon the printed sheet, means for receiving the said two sheets, and means for withdrawing the sheet receiving means for floating the sheets verticallyupon a stack.

2. In a device of the class described the combination of means for feeding a printed sheet, means for depositing a slip sheet upon the printed sheet, means for stackingthe said two sheets said means comprising tapes movable with the sheet for receiving same, and means for retaining part of the tapes stationary relative tothe sheets and for withdrawing other portions of the tapes from below the sheets whereby to permit the sheets to descend upon a stack.

3. In a device of the class described the combination with means for feeding a printed sheet and means for depositing a slip sheet upon the printed sheet, of a frame, a pair of rollers carried by the frame, one of said rollers being mounted for reciprocation in the line of feed of the sheets, tapes extending about the rollers and being in part disposed in the plane of feed of the sheets, and means to reciprocate the rollers whereby to extend the tapes for receiving sheets as they are fed to the tapes and to withdraw the tapes from below the sheets whereby to discharge the sheets from the tapes.

4. In combination with means for feeding a printed sheet and a slip sheet upon the printed face of a printed'sheet, of stacking means for the sheets comprising a pair of sides each provided with ways extending in the line of feed of the sheets, a roller mounted for reciprocation in the ways, a second roller mounted for reciprocation, tapes extending about the rollers, the tapes extending in part in a plane parallel with the line of feed of the sheets, connectors extending between the rollers whereby to develop the connectors, the rollers and tapes into an endless belt structure, and means for reciprocating the rollers.

5. combination with means. for feeding aprilnted sheet and a sl ip sheet upon the printed; face of a printed sheet, of stacking means: for the sheets comprising; a pairof sides each provided with ways extending in the line of feed ofthe sheets, a rollermounted for reciprocation in the ways, a second roller mounted for reciprocation, tapes extending about the rollers, the tapes extending in art in a plane parallel with the line of feed of the sheets, connectors extending between the rollers whereby to develop the connectors, the rollers and tapes into an endless belt structure, means for reciprocating the rollers, and means for permitting movement of the tapes in one direction between the rollers and for precluding movement of the tapes in an opposite direction.

6. In a device of the class described the combination with means for feeding the printed sheet and means for placing a slip sheet upon the printed sheet, stacking means comprising a pair of reciprocally mounted rollers, tapes extending about the rollers, the tapes being in part disposed in the plane of feed of the sheets, connectors extending between the rollers whereby to develop the connectors, rollers and tapes into an endless belt structure, a sliding block associated with one of said rollers, an endless chain disposed adjacent said block and movable in a plane parallel with the plane of reciprocation of the block and the roller with which same is associated, a connection between the chain and the block whereby continuous motion of the chain may impart a reciprocatin motion to the block and to. the shafts, and means for moving the chain.

7. In a device of the class described the combination with means for feeding the printed sheet and means for placing a slip sheet upon the printed sheet, stacking means comprising a pair of reciprocally mounted rollers, tapes extending about the rollers, the tapes being in part disposed in the plane of feed of the sheets, connectors extending between the rollers whereby to develop the connectors, rollers and tapes into an endless belt structure, a sliding block associated with one of said rollers, an endless chain disposed adjacent said block and movable in a plane parallel with the plane of reciprocation of the block and the roller with which same is associated, a connection between the chain and the block whereby continuous motion of the chain may impart a reciprocating motion to the block and to the shafts, means for moving the chain, and ratchet means controlling movement of the tapes between the rollers.

8. In a device of the class described the combination with a carrier for placing a slip sheet upon the upper face of the printed sheet and comprising a drum, endless belts,

of movement of the slip sheets and to direct the slip sheets upon the printed sheets.

In testimony whereof, we have hereunto subscribed our names this 20th day of May, 1924:.

WILLIAM E. GROENE. \VILLIAM O. STRAUSS. 

